1 files changed, 238 insertions, 33 deletions

diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index fb62c621acf9..00483d769d86 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -174,96 +174,137 @@ static inline void writeq(u64 value, volatile void __iomem *addr)
 #endif
 #endif /* CONFIG_64BIT */
 
-#ifndef insb
-static inline void insb(unsigned long addr, void *buffer, int count)
+/*
+ * {read,write}s{b,w,l,q}() repeatedly access the same memory address in
+ * native endianness in 8-, 16-, 32- or 64-bit chunks (@count times).
+ */
+#ifndef readsb
+#define readsb readsb
+static inline void readsb(const volatile void __iomem *addr, void *buffer,
+                          unsigned int count)
 {
         if (count) {
                 u8 *buf = buffer;
+
                 do {
-                        u8 x = __raw_readb(addr + PCI_IOBASE);
+                        u8 x = __raw_readb(addr);
                         *buf++ = x;
                 } while (--count);
         }
 }
 #endif
 
-#ifndef insw
-static inline void insw(unsigned long addr, void *buffer, int count)
+#ifndef readsw
+#define readsw readsw
+static inline void readsw(const volatile void __iomem *addr, void *buffer,
+                          unsigned int count)
 {
         if (count) {
                 u16 *buf = buffer;
+
                 do {
-                        u16 x = __raw_readw(addr + PCI_IOBASE);
+                        u16 x = __raw_readw(addr);
                         *buf++ = x;
                 } while (--count);
         }
 }
 #endif
 
-#ifndef insl
-static inline void insl(unsigned long addr, void *buffer, int count)
+#ifndef readsl
+#define readsl readsl
+static inline void readsl(const volatile void __iomem *addr, void *buffer,
+                          unsigned int count)
 {
         if (count) {
                 u32 *buf = buffer;
+
                 do {
-                        u32 x = __raw_readl(addr + PCI_IOBASE);
+                        u32 x = __raw_readl(addr);
                         *buf++ = x;
                 } while (--count);
         }
 }
 #endif
 
-#ifndef outsb
-static inline void outsb(unsigned long addr, const void *buffer, int count)
+#ifdef CONFIG_64BIT
+#ifndef readsq
+#define readsq readsq
+static inline void readsq(const volatile void __iomem *addr, void *buffer,
+                          unsigned int count)
+{
+        if (count) {
+                u64 *buf = buffer;
+
+                do {
+                        u64 x = __raw_readq(addr);
+                        *buf++ = x;
+                } while (--count);
+        }
+}
+#endif
+#endif /* CONFIG_64BIT */
+
+#ifndef writesb
+#define writesb writesb
+static inline void writesb(volatile void __iomem *addr, const void *buffer,
+                           unsigned int count)
 {
         if (count) {
                 const u8 *buf = buffer;
+
                 do {
-                        __raw_writeb(*buf++, addr + PCI_IOBASE);
+                        __raw_writeb(*buf++, addr);
                 } while (--count);
         }
 }
 #endif
 
-#ifndef outsw
-static inline void outsw(unsigned long addr, const void *buffer, int count)
+#ifndef writesw
+#define writesw writesw
+static inline void writesw(volatile void __iomem *addr, const void *buffer,
+                           unsigned int count)
 {
         if (count) {
                 const u16 *buf = buffer;
+
                 do {
-                        __raw_writew(*buf++, addr + PCI_IOBASE);
+                        __raw_writew(*buf++, addr);
                 } while (--count);
         }
 }
 #endif
 
-#ifndef outsl
-static inline void outsl(unsigned long addr, const void *buffer, int count)
+#ifndef writesl
+#define writesl writesl
+static inline void writesl(volatile void __iomem *addr, const void *buffer,
+                           unsigned int count)
 {
         if (count) {
                 const u32 *buf = buffer;
+
                 do {
-                        __raw_writel(*buf++, addr + PCI_IOBASE);
+                        __raw_writel(*buf++, addr);
                 } while (--count);
         }
 }
 #endif
 
-#ifndef CONFIG_GENERIC_IOMAP
-#define ioread8_rep(p, dst, count) \
-        insb((unsigned long) (p), (dst), (count))
-#define ioread16_rep(p, dst, count) \
-        insw((unsigned long) (p), (dst), (count))
-#define ioread32_rep(p, dst, count) \
-        insl((unsigned long) (p), (dst), (count))
-
-#define iowrite8_rep(p, src, count) \
-        outsb((unsigned long) (p), (src), (count))
-#define iowrite16_rep(p, src, count) \
-        outsw((unsigned long) (p), (src), (count))
-#define iowrite32_rep(p, src, count) \
-        outsl((unsigned long) (p), (src), (count))
-#endif /* CONFIG_GENERIC_IOMAP */
+#ifdef CONFIG_64BIT
+#ifndef writesq
+#define writesq writesq
+static inline void writesq(volatile void __iomem *addr, const void *buffer,
+                           unsigned int count)
+{
+        if (count) {
+                const u64 *buf = buffer;
+
+                do {
+                        __raw_writeq(*buf++, addr);
+                } while (--count);
+        }
+}
+#endif
+#endif /* CONFIG_64BIT */
 
 #ifndef PCI_IOBASE
 #define PCI_IOBASE ((void __iomem *)0)
@@ -375,6 +416,113 @@ static inline void outl_p(u32 value, unsigned long addr)
 }
 #endif
 
+/*
+ * {in,out}s{b,w,l}{,_p}() are variants of the above that repeatedly access a
+ * single I/O port multiple times.
+ */
+
+#ifndef insb
+#define insb insb
+static inline void insb(unsigned long addr, void *buffer, unsigned int count)
+{
+        readsb(PCI_IOBASE + addr, buffer, count);
+}
+#endif
+
+#ifndef insw
+#define insw insw
+static inline void insw(unsigned long addr, void *buffer, unsigned int count)
+{
+        readsw(PCI_IOBASE + addr, buffer, count);
+}
+#endif
+
+#ifndef insl
+#define insl insl
+static inline void insl(unsigned long addr, void *buffer, unsigned int count)
+{
+        readsl(PCI_IOBASE + addr, buffer, count);
+}
+#endif
+
+#ifndef outsb
+#define outsb outsb
+static inline void outsb(unsigned long addr, const void *buffer,
+                         unsigned int count)
+{
+        writesb(PCI_IOBASE + addr, buffer, count);
+}
+#endif
+
+#ifndef outsw
+#define outsw outsw
+static inline void outsw(unsigned long addr, const void *buffer,
+                         unsigned int count)
+{
+        writesw(PCI_IOBASE + addr, buffer, count);
+}
+#endif
+
+#ifndef outsl
+#define outsl outsl
+static inline void outsl(unsigned long addr, const void *buffer,
+                         unsigned int count)
+{
+        writesl(PCI_IOBASE + addr, buffer, count);
+}
+#endif
+
+#ifndef insb_p
+#define insb_p insb_p
+static inline void insb_p(unsigned long addr, void *buffer, unsigned int count)
+{
+        insb(addr, buffer, count);
+}
+#endif
+
+#ifndef insw_p
+#define insw_p insw_p
+static inline void insw_p(unsigned long addr, void *buffer, unsigned int count)
+{
+        insw(addr, buffer, count);
+}
+#endif
+
+#ifndef insl_p
+#define insl_p insl_p
+static inline void insl_p(unsigned long addr, void *buffer, unsigned int count)
+{
+        insl(addr, buffer, count);
+}
+#endif
+
+#ifndef outsb_p
+#define outsb_p outsb_p
+static inline void outsb_p(unsigned long addr, const void *buffer,
+                           unsigned int count)
+{
+        outsb(addr, buffer, count);
+}
+#endif
+
+#ifndef outsw_p
+#define outsw_p outsw_p
+static inline void outsw_p(unsigned long addr, const void *buffer,
+                           unsigned int count)
+{
+        outsw(addr, buffer, count);
+}
+#endif
+
+#ifndef outsl_p
+#define outsl_p outsl_p
+static inline void outsl_p(unsigned long addr, const void *buffer,
+                           unsigned int count)
+{
+        outsl(addr, buffer, count);
+}
+#endif
+
 #ifndef CONFIG_GENERIC_IOMAP
 #ifndef ioread8
 #define ioread8 ioread8
@@ -455,6 +603,63 @@ static inline void iowrite32be(u32 value, volatile void __iomem *addr)
         __raw_writel(__cpu_to_be32(value), addr);
 }
 #endif
+
+#ifndef ioread8_rep
+#define ioread8_rep ioread8_rep
+static inline void ioread8_rep(const volatile void __iomem *addr, void *buffer,
+                               unsigned int count)
+{
+        readsb(addr, buffer, count);
+}
+#endif
+
+#ifndef ioread16_rep
+#define ioread16_rep ioread16_rep
+static inline void ioread16_rep(const volatile void __iomem *addr,
+                                void *buffer, unsigned int count)
+{
+        readsw(addr, buffer, count);
+}
+#endif
+
+#ifndef ioread32_rep
+#define ioread32_rep ioread32_rep
+static inline void ioread32_rep(const volatile void __iomem *addr,
+                                void *buffer, unsigned int count)
+{
+        readsl(addr, buffer, count);
+}
+#endif
+
+#ifndef iowrite8_rep
+#define iowrite8_rep iowrite8_rep
+static inline void iowrite8_rep(volatile void __iomem *addr,
+                                const void *buffer,
+                                unsigned int count)
+{
+        writesb(addr, buffer, count);
+}
+#endif
+
+#ifndef iowrite16_rep
+#define iowrite16_rep iowrite16_rep
+static inline void iowrite16_rep(volatile void __iomem *addr,
+                                 const void *buffer,
+                                 unsigned int count)
+{
+        writesw(addr, buffer, count);
+}
+#endif
+
+#ifndef iowrite32_rep
+#define iowrite32_rep iowrite32_rep
+static inline void iowrite32_rep(volatile void __iomem *addr,
+                                 const void *buffer,
+                                 unsigned int count)
+{
+        writesl(addr, buffer, count);
+}
+#endif
 #endif /* CONFIG_GENERIC_IOMAP */
 
 #ifdef __KERNEL__